柔性直流输电系统在低短路比下的功率运行区间控制方法

王帆, 赵路新, 路鹏程, 连浩然, 陈云辉, 范宏, 田书欣, 刘琳琳

王帆, 赵路新, 路鹏程, 连浩然, 陈云辉, 范宏, 田书欣, 刘琳琳. 柔性直流输电系统在低短路比下的功率运行区间控制方法[J]. 电网与清洁能源, 2024, 40(9): 13-20.
引用本文: 王帆, 赵路新, 路鹏程, 连浩然, 陈云辉, 范宏, 田书欣, 刘琳琳. 柔性直流输电系统在低短路比下的功率运行区间控制方法[J]. 电网与清洁能源, 2024, 40(9): 13-20.
WANG Fan, ZHAO Luxin, LU Pengcheng, LIAN Haoran, CHEN Yunhui, FAN Hong, TIAN Shuxin, LIU Linlin. A Power Operation Interval Control Method for Flexible DC Transmission System under Low Short-Circuit Ratio[J]. Power system and Clean Energy, 2024, 40(9): 13-20.
Citation: WANG Fan, ZHAO Luxin, LU Pengcheng, LIAN Haoran, CHEN Yunhui, FAN Hong, TIAN Shuxin, LIU Linlin. A Power Operation Interval Control Method for Flexible DC Transmission System under Low Short-Circuit Ratio[J]. Power system and Clean Energy, 2024, 40(9): 13-20.

柔性直流输电系统在低短路比下的功率运行区间控制方法

基金项目: 

上海市2022年度“科技创新行动计划”科技支撑碳达峰碳中和专项项目(22DZ1206100)~~

详细信息
    作者简介:

    王帆(1983—),男,硕士,高级工程师,研究方向为综合能源处理、源网荷储一体化平台设计和配电网络规划相关研究;田书欣(1985—),男,博士,副教授,研究方向为电力系统规划、智能配电网运行等;刘琳琳(2000—),女,硕士研究生,研究方向为综合能源系统优化

    通讯作者:

    范宏(1978—),女,博士,副教授,硕士生导师,研究方向为综合能源系统、实时仿真

  • 中图分类号: TM721.1

A Power Operation Interval Control Method for Flexible DC Transmission System under Low Short-Circuit Ratio

Funds: 

Project Supported by the 2022 Shanghai“Science and Technology Innovation Action Plan”:Special Science and Technology Support Project for Carbon Peaking and Neutrality(22DZ1206100)

  • 摘要: 深入探讨柔性直流输电系统的功率运行区间控制策略,对于提高电能传输质量并保障系统稳定至关重要。在此背景下,提出了一种柔性直流输电系统在低短路比下的功率运行区间控制方法。首先,分析低短路比条件下柔性直流系统的功率运行特性和影响因素,并确定了限制模块化多电平换流器的柔性直流输电(modular multilevel converter-high voltage direct current,MMC-HVDC)稳态运行区域的约束条件。然后,基于这些约束条件,构建了柔性直流输电系统在低短路比下的功率运行区间的理论计算模型,并开发了低短路比柔性直流系统和弱交流系统相连的柔性系统功率运行范围的计算程序。最后,在仿真环境中使用逐点扫描法和隐函数绘图法绘制了MMC在PQ平面上的稳态运行区域的边界,互相印证计算结果的准确性,同时证实了所提控制方法的有效性。
    Abstract: Thoroughly exploring the power operation interval control strategy of flexible DC transmission systems is crucial for improving the quality of power transmission and ensuring system stability. In this context,this paper proposes a power operation interval control method for flexible DC transmission system under low short-circuit ratio. Firstly, the power operation characteristics and influencing factors of the flexible DC system under the condition of low short-circuit ratio are analyzed,and the constraints that limit the steady-state operation area of the flexible DC transmission of the modular multilevel converterhigh voltage direct current(MMC-HVDC) are determined.Secondly,based on these constraints,a theoretical calculation model of the power operation interval of the flexible DC transmission system under low short-circuit ratio is constructed,and the calculation program of the power operating range of the flexible system connected by the flexible DC system with low short-circuit ratio and the weak AC system is developed. Finally,the boundary of the steady-state operation region of MMC on the PQ plane is drawn by using the point-by-point scanning method and the implicit function plotting method in the simulation environment to mutually the accuracy of the calculation results and verify the effectiveness of the proposed control method.
  • [1] 黄通,陈新,张东辉,等.考虑电压前馈控制的MMCHVDC并网稳定性分析及其阻抗控制优化方法[J].中国电机工程学报,2023,43(23):8987-8997.

    HUANG Tong,CHEN Xin,ZHANG Donghui,et al. MMCHVDC integrated system stability analysis and impedance optimization method with consideration of voltage feedforward control[J]. Proceedings of the CSEE,2023,43(23):8987-8997.

    [2]

    CHEN Lei,ZHAO Zekai,QIAO Xuefeng,et al. A novel current-limiting method for MMC-HVDC by coordinating virtual impedance control and fault current limiter[J].Energy Reports,2022,8(S15):385-398.

    [3]

    HUANG Tong,CHEN Xin. Sequence impedance modeling and optimization of MMC-HVDC considering DC voltage control and voltage feedforward control[J].Energies,2022,15(24):9649-9649.

    [4] 辛业春,刘熠,江守其,等.计及零直流电压控制的混合型MMC-HVDC输电系统短路电流计算方法[J].电网技术,2023,47(7):2820-2828.

    XIN Yechun,LIU Yi,JIANG Shouqi,et al. Short-circuit current calculation method for FHMMC-HVDC transmission systems with zero DC voltage control[J]. Power System Technology,2023,47(7):2820-2828.

    [5] 杨万开,张书瑀,于华龙,等.柔直联于弱交流系统分析和仿真试验研究[J].电网技术,2021,45(6):2457-2464.

    YANG Wankai,ZHANG Shuyu,YU Hualong,et al.System analysis and simulation experimental research of VSC-MMC HVDC connected to AC weak system[J].Power System Technology,2021,45(6):2457-2464.

    [6] 王琛,谭开东,王毅,等.具备直流故障清除和自均压能力的MMC移位全桥子模块拓扑[J].电力系统自动化,2020,44(24):151-160.

    WANG Chen,TAN Kaidong,WANG Yi,et al. Topology of MMC oblique-connection full-bridge sub-module with capability of DC fault clearing and voltage self-balancing[J].Automation of Electric Power Systems,2020,44(24):151-160.

    [7]

    KANG F S,SONG S G. Fault-tree-based failure-rate analysis for clamped-double submodule employing DCshort current protecting function[J]. Journal of Electrical Engineering&Technology,2020,16(1):357-365.

    [8] 王琛,陶建业,王毅,等.具备故障电流对称清除能力的双向开关钳位式全桥子模块[J].电网技术,2021,45(7):2596-2604.

    WANG Chen,TAO Jianye,WANG Yi,et al. Bidirectional switch clamp full bridge submodule with fault current symmetricalclearingcapability[J].PowerSystemTechnology,2021,45(7):2596-2604.

    [9] 尹晓东,郝全睿,李正,等.具备直流故障电流阻断能力的MMC改进型拓扑的快速仿真算法[J].高电压技术,2017,43(7):2183-2193.

    YIN Xiaodong,HAO Quanrui,LI Zheng,et al. Fast simulation method for improved topologies of modular multilevel converter with DC fault current blocking capability[J]. High Voltage Engineering,2017,43(7):2183-2193.

    [10] 朱雯清,赵西贝,赵成勇.一种嵌套型MMC拓扑及其直流故障穿越策略[J].中国电机工程学报,2023,43(21):8434-8444.

    ZHU Wenqing,ZHAO Xibei,ZHAO Chengyong,et al.Research on topology and fault ride-through strategy of converter embedded MMC[J. Proceedings of the CSEE,2023,43(21):8434-8444.

    [11] 江友华,陈芳,赵乐,等.不平衡电网电压条件下MMC控制策略综述[J].电源学报,2023,21(4):74-87.

    JIANG Youhua,CHEN Fang,ZHAO Le,et al. Review on control strategy of modular multilevel converter under unbalanced grid voltage[J].Journal of Power Supply,2023,21(4):74-87.

    [12] 付鹏宇.压接型IGBT器件子模组封装的放电特性及机制研究[D].北京:华北电力大学,2019.
    [13]

    LIU Yiqi,DUAN Zhaoyu,CHEN Qichao,et al. MMCmodified sub-module structure with double reverse blocking IGBTs[J]. Journal of Power Electronics,2022,23(3):434-444.

    [14] 雷顺广,束洪春,李志民,等.柔性直流输电系统的桥臂功率解析[J].电网技术,2023,47(4):1490-1500.

    LEI Shunguang, SHU Hongchun, LI Zhimin, et al.Bridge arm power analysis of flexible HVDC transmission system[J]. Power System Technology,2023,47(4):1490-1500.

    [15] 王立功,麻恒远.电网不对称故障下VSC-HVDC控制策略研究[J].电力电子技术,2023,57(3):91-94.

    WANG Ligong,MA Hengyuan. Research on VSC-HVDC control strategy under asymmetric faults in the power grid[J]. Power Electronics,2023,57(3):91-94.

    [16]

    KHAN S,BHOWMICK S. A comprehensive power-flow model of multi-terminal PWM based VSC-HVDC systems with DC voltage droop control[J]. International Journal of Electrical Power and Energy Systems,2018,102:71-83.

    [17]

    ZHOU J,CHEN Y,RAN L. MMC equivalent modeling method of AC/DC hybrid system based on model-data hybrid drive[C]//the International Society for Applied Computing(ISAC),The Technical Institute for Engineers(TIE.).Proceedings of 2021 2nd International Conference on Electronics, Communications and Information Technology(CECIT 2021).Chongqing:Chongqing Electric Power Research Institute State Grid Corperation of China,School of Electrical Engineering Chongqing University,2021:7.

    [18] 和敬涵,张佳宝,李猛,等.基于孪生模型的模块化多电平换流器保护原理[J].电力系统自动化,2023,47(2):119-126.

    HE Jinghan,ZHANG Jiabao,LI Meng,et al. Protection of modular multilevel converter based on digital twin model[J]. Automation of Electric Power Systems,2023,47(2):119-126.

计量
  • 文章访问数:  0
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 收稿日期:  2023-11-26

目录

    /

    返回文章
    返回